Archives for Commodities - Page 11

Antimony

Cosmetics, Alchemy , Fire and Electricity   History Antimony sulphide (stibnite) was used as a cosmetic as long ago as 3,000BC, in Sumer (today’s south-central Iraq) and Egypt. The sulphide was finely ground and generally applied to the eyes and eyelashes. Much later its use as a cosmetic spread to…

Shale Gas

A Global Game Changer?   Background In 1825 William Hart sold shale gas (produced from a drill hole) to the village of Fredonia, to be used for lighting. Fredonia, Pennsylvania is in the United States, about 500 kilometres due west of New York City and 100 kilometres east of Cleveland.…

Natural Gas

Some Recent Developments A Gas Glut The natural gas market will soon be flooded with new sources of gas. The US has already licensed the export of LNG (liquefied natural gas) as a result of the discovery of massive resources of shale gas. It has a distinct advantage as it…

Graphite – Looking Rather Bubbly?

Chemistry Carbon is the basis of all life on Earth. Carbon is also the basis of an enormous array of organic chemicals, such as hydrocarbons, and some important inorganic chemicals, such as carbon dioxide. Carbon can also bond with itself to form graphite, coal and diamonds. Graphite is comprised of…

Coal Bed Methane

Background “Coalification” is the transformation of plant matter into coal under particular conditions of pressure, temperature and time. Once coal has been formed, further molecular changes lead to the formation of vast quantities of thermogenic methane. This methane (natural gas) is variously known as Coal Bed Methane, Coal Seam Gas…

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